CN111252948B - Reverse osmosis seawater desalination system energy recuperation device - Google Patents

Reverse osmosis seawater desalination system energy recuperation device Download PDF

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Publication number
CN111252948B
CN111252948B CN202010135055.9A CN202010135055A CN111252948B CN 111252948 B CN111252948 B CN 111252948B CN 202010135055 A CN202010135055 A CN 202010135055A CN 111252948 B CN111252948 B CN 111252948B
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water
pipe
gear
water inlet
assembly
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CN111252948A (en
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周玉芳
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Suzhou pulun Electronic Technology Co.,Ltd.
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Suzhou Pulun Electronic Technology Co ltd
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Priority to CN202110486776.9A priority patent/CN113307330A/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/06—Energy recovery
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/066—Overpressure, high pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/10—Energy recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses an energy recovery device of a reverse osmosis seawater desalination system, which comprises a water inlet assembly, a dosing assembly, a compression assembly and a speed reduction assembly, wherein the water inlet assembly is positioned at one end of the device, the dosing assembly is fixedly arranged at one side of the water inlet assembly, the end of the water inlet assembly, which is far away from the dosing assembly, is fixedly communicated with the compression assembly, and the speed reduction assembly is fixedly arranged in the center of the compression assembly. Thereby replacing low-concentration seawater to continuously carry out desalination separation and enhancing the separation efficiency of fresh water.

Description

Reverse osmosis seawater desalination system energy recuperation device
Technical Field
The invention relates to the technical field of seawater desalination, in particular to an energy recovery device of a reverse osmosis seawater desalination system.
Background
Sea water desalination, namely the desalination of sea water to produce fresh water, is an open source increment technology for realizing the utilization of water resources, can increase the total amount of fresh water, is not influenced by time, space and climate, can ensure stable water supply such as drinking water of coastal residents and water replenishing of industrial boilers, and the process of obtaining fresh water from sea water is called sea water desalination, the sea water desalination methods used at present comprise a sea water freezing method, an electrodialysis method, a distillation method, a reverse osmosis method and an ammonium carbonate ion exchange method capable of realizing profit, the reverse osmosis method using the reverse osmosis membrane at present rapidly occupies the market by the advantages of simple equipment, easy maintenance and modular equipment, the distillation method is gradually replaced to become the most widely applied method, one hundred scientific research institutions of more than ten countries in the world are researching the sea water desalination, hundreds of sea water desalination facilities with different structures and different capacities are working, one modern large-scale sea water desalination plant, thousands, tens of thousands or even nearly millions of tons of fresh water can be produced every day, the cost of desalinated water is continuously reduced, some countries have reduced the price of tap water to be similar to that of tap water, the desalinated water quantity in some regions reaches the water supply scale of the countries and cities, but the existing seawater desalination devices are huge, occupy space, and lack small seawater desalination devices to desalt at low cost and use the desalinated fresh water, so people need an energy recovery device of a reverse osmosis seawater desalination system to solve the problems.
Disclosure of Invention
The invention aims to provide an energy recovery device of a reverse osmosis seawater desalination system, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a reverse osmosis seawater desalination system energy recuperation device, includes the subassembly of intaking, adds medicine subassembly, compression subassembly, speed reduction subassembly, the subassembly of intaking is located this device one end, the subassembly of intaking plays the effect with in the outside sea water introducing device, subassembly one side fixed mounting that intakes has the medicine subassembly, add the sea water of medicine subassembly in to the introducing device and add the medicine and deposit, make the sea water clean, the subassembly of intaking is kept away from and is added the fixed intercommunication of medicine subassembly one end and have the compression subassembly, the compression subassembly utilizes the mode of compression to produce the pressure that is greater than the sea water osmotic pressure to separate out fresh water, compression subassembly central authorities fixed mounting has the speed reduction subassembly, the speed reduction subassembly is used for converting motor drive rate, reaches a multi-purpose effect.
The water inlet assembly comprises a base, a water inlet pump, a water inlet connecting pipe, a water feeding connecting pipe and a reaction water tank, wherein the base is positioned at the lowest part of the whole device and plays a role of supporting the whole device, so that the whole device is connected into a whole, the device is convenient to carry and move, the water inlet pump is fixedly arranged on one side above the base, the water inlet pump plays a role of extracting seawater into the device and is convenient for subsequent seawater desalination treatment operation, the water inlet connecting pipe is fixedly arranged at one end of a water inlet of the water inlet pump and is convenient to be connected with an external water inlet pipeline, the water feeding connecting pipe is fixedly connected with one end of a water outlet of the water inlet pump and is convenient to be connected with the water inlet pipeline of the reaction water tank, the water feeding connecting pipe is fixedly communicated with the reaction water tank through a pipe fitting, the reaction water tank can store seawater inside, and the alum is added, reduce the impurity of sea water, the sea water after reacting with alum is under the pump action of motor of exerting pressure, get into the compression pipe through the inlet tube, along with the sea water constantly gets into in the compression pipe, the water pressure is bigger and bigger in the compression pipe, when water pressure surpassed sea water osmotic pressure, fresh water can permeate the pellicle, discharge from the fresh water discharge pipe, under the gear reduction in the eighty times reduction box casing, the rotational speed of conducting the valve ball is motor speed/, make the valve ball just open once at interval of time, release the inside sea water pressure of compression pipe, the strong brine outlet pipe is discharged to high salinity sea water.
The chemical dosing assembly comprises a chemical dosing box supporting frame, a chemical dosing box, a chemical feeding pipe and a valve, the reaction water tank is far away from one side of a water inlet pump and is fixedly provided with the chemical dosing box supporting frame, the chemical dosing box supporting frame plays a role in supporting the chemical dosing box, the bottom surface of the chemical dosing box is higher than the top surface of the reaction water tank, liquid alum in the chemical dosing box is convenient to flow into the reaction water tank automatically under the action of gravity to adsorb seawater, the chemical dosing box is fixedly arranged at the top end of the chemical dosing box supporting frame, alum is stored in the chemical dosing box, the chemical feeding box is close to one end of the reaction water tank and is fixedly provided with the chemical feeding pipe, the chemical feeding pipe can introduce the liquid alum in the chemical dosing box into the reaction water tank to purify the seawater, the chemical feeding pipe is fixedly provided with the valve, and the valve is.
The compression assembly comprises a pressure applying motor, an eccentric bearing, a cylindrical clamping strip, a direction stabilizing block, a connecting block, a push-pull column, a push-pull plug, a pressure applying pipe, a compression film, a water inlet pipe and a compression pipe, wherein the center of the base is fixedly provided with the pressure applying motor, the rotor of the pressure applying motor is fixedly provided with the eccentric bearing, the outer ring of the eccentric bearing is fixedly provided with the cylindrical clamping strip, the two cylindrical clamping strips are respectively and fixedly arranged at two sides of the eccentric bearing, one end of the eccentric bearing is provided with the direction stabilizing block, the cylindrical clamping strip is clamped into the direction stabilizing block, the cylindrical clamping strip and the direction stabilizing block can carry out relative rotary motion, so that when the motor drives the eccentric bearing to rotate and swing, the eccentric bearing can not drive the direction stabilizing block to swing up and down, only can drive the direction stabilizing block to swing transversely, and the direction stabilizing block is fixedly provided with the connecting block far away from one end of, the connecting block plays a role of connecting the direction stabilizing block with the push-pull column, so that the phenomenon that the direction stabilizing block and the push-pull column are unstable in connection due to different shapes is avoided, the push-pull column is fixedly arranged at one end, far away from the direction stabilizing block, of the connecting block, the push-pull column plays a role of pushing and pulling a push-pull plug, the push-pull plug is fixedly arranged at one end, far away from the connecting block, of the push-pull column, the push-pull plug can push and pull back water in the water pressing pipe, when the push-pull plug is pushed, the compression membrane rises towards one side, far away from the push-pull column, the water pressure in the water pressing pipe is increased, seawater in the water pressing pipe enters the compression pipe through the water retaining ring, when the push-pull plug is pulled back, the compression membrane rises towards one side, the water pressure in the water pressing pipe is reduced, the water retaining ring on one side of the water inlet pipe is sucked up by, the water flow continuously flows into the compression pipe from the water inlet pipe, the surface of the push-pull plug is made of rubber, the sealing effect of the push-pull plug on the water pressing pipe is facilitated, the push-pull plug can effectively push or pull back the compression film, the water pressing pipe is fixedly installed outside the push-pull plug, one side of the water pressing pipe is fixedly communicated with the water inlet pipe, one end, away from the water pressing pipe, of the water inlet pipe is fixedly communicated with the middle of the reaction water tank, the compression pipe is fixedly communicated with one end, close to the water pressing pipe, of the water inlet pipe, a one-way valve assembly is fixedly installed on one side, close to the water pressing pipe, of the water inlet pipe, the one-way valve assembly enables water to flow in one direction only, the one-way valve assembly comprises a water blocking ring, a water blocking ball and a limiting block, the water blocking, the utility model discloses a water retaining ball, including water retaining ball, stopper, water retaining ball, water retaining ring, water retaining ball, check valve assembly, compression pipe, compression.
The speed reducing component comprises an eight-time speed reducing box shell, a double gear, a first quadruple gear, a first double gear and a second quadruple gear, the double gear is fixedly installed at the front end of the rotor of the pressing motor, the first quadruple gear is installed at one end of the double gear in a meshed mode, the first quadruple gear is fixedly installed in the middle of the first quadruple gear in an extending mode, the first double gear is coaxial with the first quadruple gear, the second quadruple gear is installed at the first double gear in a meshed mode, the diameter of the first quadruple gear is twice that of the double gear, the diameter of the second quadruple gear is equal to that of the double gear, the double gear drives the double gear to rotate, the first quadruple gear drives the first double gear to rotate, and the first double gear drives the second quadruple gear to rotate, when the power transmission of rotor was to the second quadruple gear, the rotational speed of second quadruple gear was rotor speed/, the inside fixed mounting of first quadruple gear has the gear shaft, the inside fixed mounting of second quadruple gear has the gear shaft, the inside gear shaft of second quadruple gear and the synchronous rotation of second quadruple gear, eightfold gear box casing fixed mounting plays the effect of protecting two times gear, first quadruple gear, one time gear, second quadruple gear in the outside of two times gear.
The inside gear shaft of second quadruple gear keeps away from pressure motor one end fixed mounting and has the valve ball, valve ball valve opening diameter is 1/4 of valve ball diameter, valve ball fixed mounting is calculated by the valve ball closing from the strong brine outlet pipe on the strong brine outlet pipe, and every time getting into inferior water in the compression pipe, the valve ball is opened once, carries out once drainage pressure release to the compression pipe inside, discharges high concentration salt solution.
The water inlet pump can adopt an ISW horizontal pipeline centrifugal pump, and the pressurizing motor can adopt a Yutong brand YE2 three-phase asynchronous motor.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a mode of pressurizing the inside of the pipe fitting to ensure that the pressure of seawater on the semi-permeable membrane is greater than the osmotic pressure of the seawater to separate fresh water by osmosis, only few parts are needed to complete seawater desalination, the device has small volume and easy movement, can be prepared on site according to real-time conditions, and has flexibility.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an energy recovery device of a reverse osmosis seawater desalination system according to the present invention;
FIG. 2 is a schematic view of the installation position of the casing of the eight-time reduction gearbox of the energy recovery device of the reverse osmosis seawater desalination system of the present invention;
FIG. 3 is a schematic diagram of a gear position relationship structure of an energy recovery device of a reverse osmosis seawater desalination system according to the present invention;
FIG. 4 is a schematic diagram of a partial structure of a compression assembly of the energy recovery device of the reverse osmosis seawater desalination system of the present invention;
FIG. 5 is a schematic diagram of a position relationship of cylindrical clamping strips of the energy recovery device of the reverse osmosis seawater desalination system of the present invention;
FIG. 6 is a schematic cross-sectional view of a compression module of the energy recovery device of the reverse osmosis desalination system of the present invention.
101. A base; 111. a water inlet pump; 112. a water inlet connecting pipe; 113. a water feeding connection pipe; 114. a reaction water tank; 211. a dosing box support frame; 212. a dosing box; 213. a medicine inlet pipe; 214. a valve; 311. a pressure applying motor; 312. an eccentric bearing; 313. a cylindrical clamping strip; 314. a direction stabilizing block; 315. a joining block; 316. pushing and pulling the column; 317. pushing and pulling the plug; 321. a water pressing pipe; 322. compressing the film; 323. a water inlet pipe; 324. compressing the tube; 325. a water retaining ring; 326. a water blocking ball; 327. a limiting block; 331. a fresh water discharge pipe; 332. a semi-permeable membrane; 411. an eight-time reduction box shell; 412. a double gear; 413. a first quad gear; 414. one time of gear; 415. a second quadruple gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1-6, a reverse osmosis seawater desalination system energy recuperation device, including the subassembly of intaking, add the medicine subassembly, the compression subassembly, the speed reduction subassembly, the subassembly of intaking is located this device one end, the subassembly of intaking plays the effect with in the outside sea water introducing device, subassembly one side fixed mounting that intakes has the medicine subassembly, add the medicine subassembly and deposit the sea water of adding in the introducing device, it is clean to make the sea water, the subassembly of intaking is kept away from the fixed intercommunication of medicine subassembly one end and is had the compression subassembly, the compression subassembly utilizes the mode of compression to produce the pressure that is greater than the sea water osmotic pressure, thereby isolate fresh water, compression subassembly central authorities fixed mounting has the speed reduction subassembly, the speed reduction subassembly is used for converting motor drive rate, reach the effect of.
The water inlet assembly comprises a base 101, a water inlet pump 111, a water inlet connecting pipe 112, a water delivery connecting pipe 113 and a reaction water tank 114, wherein the base 101 is positioned at the lowest part of the whole device and plays a role of supporting the whole device, so that the whole device is connected into a whole and is convenient for carrying and moving, the water inlet pump 111 is fixedly arranged at one side above the base 101, the water inlet pump 111 plays a role of pumping seawater into the device and is convenient for subsequent seawater desalination treatment operation, the water inlet connecting pipe 112 is fixedly arranged at one end of a water inlet of the water inlet pump 111 and is convenient for connecting with an external water inlet pipeline, the water delivery connecting pipe 113 is fixedly connected at one end of a water outlet of the water inlet pump 111 and is convenient for connecting with the water inlet pipeline of the reaction water tank connecting pipe 114, the water delivery connecting pipe 113 is fixedly communicated with the reaction water tank 114 through a pipe fitting, seawater can be stored in the reaction water tank 114, the impurities of the seawater are reduced, the seawater after the reaction with the alum enters the compression pipe 324 through the water inlet pipe 323 under the pumping of the pressure motor 311, the water pressure in the compression pipe 324 is increased along with the continuous entering of the seawater into the compression pipe 324, when the water pressure exceeds the osmotic pressure of the seawater, the freshwater permeates the semipermeable membrane 332 and is discharged from the freshwater discharge pipe 331, the freshwater is transmitted to 1/8 with the rotating speed of the valve ball being the rotating speed of the motor under the speed reduction of the gear in the eight-time reduction gearbox shell 411, the valve ball is opened once at intervals, the seawater pressure in the compression pipe 324 is released, and the high salinity seawater is discharged from the concentrated brine outlet pipe 328.
The dosing assembly comprises a dosing box support frame 211 and a dosing box 212, a dosing box support frame 211 is fixedly installed on one side, far away from the water inlet pump 111, of the reaction water tank 114, the dosing box support frame 211 plays a role of supporting the dosing box 212, the bottom surface of the dosing box 212 is higher than the top surface of the reaction water tank 114, liquid alum in the dosing box 212 can automatically flow into the reaction water tank 114 under the action of gravity to adsorb seawater, the dosing box 212 is fixedly installed at the top end of the dosing box support frame 211, alum is stored in the dosing box 212, the dosing box 212 is fixedly installed with the dosing pipe 213 close to one end of the reaction water tank 114, the liquid alum in the dosing box 212 can be introduced into the reaction water tank 114 through the dosing pipe 213 to purify seawater, the valve 214 is fixedly installed on the dosing pipe 213, and the valve 214 is used for realizing on-off control of the dosing pipe 213 and facilitating control of the adding amount of the alum.
The compression component comprises a pressure applying motor 311, an eccentric bearing 312, a cylindrical clamping strip 313, a direction stabilizing block 314, a connecting block 315, a push-pull column 316, a push-pull plug 317, a water pressing pipe 321, a compression film 322, a water inlet pipe 323 and a compression pipe 324, wherein the center of the base 101 is fixedly provided with the pressure applying motor 311, the rotor of the pressure applying motor 311 is fixedly provided with the eccentric bearing 312, the outer ring of the eccentric bearing 312 is fixedly provided with the cylindrical clamping strip 313, the two cylindrical clamping strips 313 are respectively and fixedly arranged at two sides of the eccentric bearing 312, one end of the eccentric bearing 312 is provided with the direction stabilizing block 314, the cylindrical clamping strip 313 is clamped in the direction stabilizing block 314, the cylindrical clamping strip 313 and the direction stabilizing block 314 can carry out relative rotary motion, when the motor drives the eccentric bearing 312 to rotate and swing, the eccentric bearing 312 cannot drive the direction stabilizing block 314 to carry out up-down swing, only can drive the direction stabilizing block 314 to carry out transverse swing, one end of the direction stabilizing, the joining block 315 serves to join the direction stabilizing block 314 and the push-pull column 316, so as to prevent unstable joining between the direction stabilizing block 314 and the push-pull column 316 due to different shapes, the push-pull column 316 is fixedly installed at one end of the joining block 315 away from the direction stabilizing block 314, the push-pull column 316 serves to push-pull the push-pull plug 317, the push-pull plug 317 is fixedly installed at one end of the push-pull column 316 away from the joining block 315, the push-pull plug 317 can push and pull back water in the water pressurizing pipe 321, when the push-pull plug 317 is pushed, the compression membrane 322 rises to one side away from the push-pull column 316, the water pressure in the water pressurizing pipe 321 increases, seawater in the water pressurizing pipe 321 enters the compression pipe 324 through the water retaining ring 325, when the push-pull plug 317 is pulled back, the compression membrane 322 rises to one side close to the push-pull column 316, the water pressure in the water pressurizing pipe 321 decreases, the water retaining ring 325 at one side of the water inlet, the water in the water inlet pipe 323 enters the inside of the water pressing pipe 321, along with the continuous push and pull of the push and pull plug 317, the water continuously flows into the inside of the compression pipe 324 from the water inlet pipe 323, the surface of the push and pull plug 317 is made of rubber, which is beneficial to the sealing effect of the push and pull plug 317 on the water pressing pipe 321, so that the push and pull plug 317 can effectively push or pull back the compression film 322, the water pressing pipe 321 is fixedly installed outside the push and pull plug 317, the water inlet pipe 323 is fixedly communicated with one side of the water pressing pipe 321, one end of the water inlet pipe 323 far away from the water pressing pipe 321 is fixedly communicated with the middle of the reaction water tank 114, one end of the water inlet pipe 323 near the water pressing pipe 321 is fixedly communicated with the compression pipe 324, one-way valve assembly is fixedly installed on one side of the water pressing pipe 321 inside the water inlet pipe 323, one side of the water retaining ring 325 is provided with a water retaining ball 326, the water retaining ball 326 floats in the water retaining ring 325 pipeline, one end of the water retaining ball 326, which is far away from the water retaining ring 325, is fixedly provided with a limiting block 327, the limiting block 327 plays a limiting effect on the water retaining ball 326, the water retaining ball 326 is prevented from being washed away along with water flow, the water retaining ball 326 is always limited between the water retaining ring 325 and the water retaining ball 326, the water retaining ring 325 is a hollow circular water retaining ring 325, when the water flow flows from the direction of the water retaining ball 326 to the direction of the water retaining ring 325, the water flow can impact the water retaining ball 326 to block the water retaining ring 325, so that the water flow cannot pass through, the water flow one-way circulation effect of the one-way valve assembly is achieved, and the.
The speed reducing component comprises an eight-time speed reducing box shell 411, a double gear 412, a first quadruple gear 413, a double gear 414 and a second quadruple gear 415, wherein the double gear 412 is fixedly arranged at the front end of a rotor of a pressing motor 311, the first quadruple gear 413 is arranged at one end of the double gear 412 in a meshed mode, the first quadruple gear 414 extends from the center of the first quadruple gear 413 and is fixedly arranged, the double gear 414 is coaxial with the first quadruple gear 413, the second quadruple gear 415 is arranged in a meshed mode, the diameter of the first quadruple gear 413 is twice that of the double gear 412, the diameter of the first quadruple gear 414 is 1/2 that of the double gear 412, the diameter of the second quadruple gear 415 is equal to that of the double gear 412, so that the rotor of the pressing motor 311 drives the double gear 412 to rotate, the double gear 412 drives the first quadruple gear 413 to rotate, the first quadruple gear 413 drives the double gear 414 to rotate, and the first quadruple gear, when the power of the rotor is transmitted to the second quadruple gear 415, the rotating speed of the second quadruple gear 415 is 1/8 of the rotating speed of the rotor, a gear shaft is fixedly installed inside the first quadruple gear 413, a gear shaft is fixedly installed inside the second quadruple gear 415, the gear shaft inside the second quadruple gear 415 and the second quadruple gear 415 rotate synchronously, and the eight-time reduction box shell 411 is fixedly installed outside the double gear 412 and plays a role in protecting the double gear 412, the first quadruple gear 413, the first double gear 414 and the second quadruple gear 415.
The inside gear shaft of second quadruple gear 415 is kept away from pressing motor 311 one end fixed mounting and is had the valve ball, and valve ball valve hole diameter is 1/4 of valve ball diameter, and valve ball fixed mounting is on strong brine outlet pipe 328, and sealed the calculation by the valve ball from strong brine outlet pipe 328, and every 8 times water that get into in the compression pipe 324, the valve ball is opened once, carries out once drainage pressure release to compression pipe 324 inside, discharges high concentration salt solution.
The working principle of the invention is as follows:
the water inlet pump 111 pumps outside seawater into the reaction water tank 114, the alum is added into the reaction water tank 114 by the chemical adding device to react and adsorb with the seawater, impurities of the seawater are reduced, the seawater reacted with the alum enters the compression pipe 324 through the water inlet pipe 323 under the pumping action of the pressure motor 311, the water pressure in the compression pipe 324 is increased along with the continuous entering of the seawater into the compression pipe 324, when the water pressure exceeds the osmotic pressure of the seawater, the fresh water permeates the semipermeable membrane 332 and is discharged from the fresh water discharge pipe 331, and the rotation speed of the valve ball is 1/8 of the rotation speed of the motor under the deceleration of the gear in the eight-time reduction gearbox shell 411, so that the valve ball is opened once at intervals, the seawater pressure in the compression pipe 324 is released, and the high salinity is discharged from the strong brine outlet pipe 328.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. The utility model provides a reverse osmosis seawater desalination system energy recuperation device which characterized in that: the seawater desalination device comprises a water inlet assembly, a dosing assembly, a compression assembly and a speed reduction assembly, wherein the water inlet assembly is positioned at one end of the device and plays a role of introducing external seawater into the device, the dosing assembly is fixedly installed at one side of the water inlet assembly and is used for dosing and precipitating the seawater in the device to clean the seawater, the compression assembly is fixedly communicated with one end, away from the dosing assembly, of the water inlet assembly, the compression assembly is fixedly communicated with the end, away from the dosing assembly, and generates pressure greater than osmotic pressure of the seawater by using a compression mode, so that fresh water is separated out, the speed reduction assembly is fixedly installed in the center of the compression assembly and is used for converting the transmission speed of a;
the water inlet assembly comprises a base (101), a water inlet pump (111), a water inlet connecting pipe (112), a water feeding connecting pipe (113) and a reaction water tank (114), the base (101) is located at the lowest part of the whole device, the water inlet pump (111) is fixedly installed on one side above the base (101), the water inlet connecting pipe (112) is fixedly installed at one end of a water inlet of the water inlet pump (111), the water feeding connecting pipe (113) is fixedly connected to one end of a water outlet of the water inlet pump (111), and the water feeding connecting pipe (113) is fixedly communicated with the reaction water tank (114) through a pipe fitting;
the compression assembly comprises a pressing motor (311), eccentric bearings (312), cylindrical clamping strips (313), direction stabilizing blocks (314), a connecting block (315), a push-pull column (316), a push-pull plug (317), a water pressing pipe (321), a compression film (322), a water inlet pipe (323) and a compression pipe (324), wherein the pressing motor (311) is fixedly installed in the center of the base (101), the eccentric bearings (312) are fixedly installed on rotors of the pressing motor (311), the cylindrical clamping strips (313) are fixedly installed on outer rings of the eccentric bearings (312), the two cylindrical clamping strips (313) are respectively and fixedly installed on two sides of the eccentric bearings (312), the direction stabilizing blocks (314) are installed at one ends of the eccentric bearings (312), the cylindrical clamping strips (313) are clamped into the direction stabilizing blocks (314), and the connecting blocks (315) are fixedly installed at one ends, far away from the eccentric bearings (312), of the direction stabilizing blocks (314), one end, far away from the direction stabilizing block (314), of the joining block (315) is fixedly provided with a push-pull column (316), one end, far away from the joining block (315), of the push-pull column (316) is fixedly provided with a push-pull plug (317), the outside of the push-pull plug (317) is fixedly provided with a water pressing pipe (321), one side of the water pressing pipe (321) is fixedly communicated with a water inlet pipe (323), one end, far away from the water pressing pipe (321), of the water inlet pipe (323) is fixedly communicated with the middle of the reaction water tank (114), one end, close to the water pressing pipe (321), of the water inlet pipe (323) is fixedly communicated with a compression pipe (324), one side, close to the water pressing pipe (321), of the inside of the water inlet pipe (323) is fixedly provided with a one-way valve assembly, the one-way valve assembly comprises a water retaining ring (325), a water retaining ball (326) and a limiting block (327), the, keep off water ball (326) and keep away from water retaining ring (325) one end fixed mounting and have stopper (327), stopper (327) play spacing effect to water retaining ball (326), water retaining ring (325) is the annular water retaining ring (325) of cavity, be provided with check valve subassembly in compression pipe (324).
2. A reverse osmosis seawater desalination system energy recovery device as claimed in claim 1, wherein: the medicine feeding assembly comprises a medicine feeding box support frame (211), a medicine feeding box (212), a medicine feeding pipe (213) and a valve (214), wherein the reaction water tank (114) is far away from one side of the water inlet pump (111) and is fixedly provided with the medicine feeding box support frame (211), the top end of the medicine feeding box support frame (211) is fixedly provided with the medicine feeding box (212), alum is stored in the medicine feeding box (212), the medicine feeding box (212) is close to one end of the reaction water tank (114) and is fixedly provided with the medicine feeding pipe (213), and the medicine feeding pipe (213) is fixedly provided with the valve (214).
3. A reverse osmosis seawater desalination system energy recovery device as claimed in claim 1, wherein: the speed reducing assembly comprises an eight-time speed reducing box shell (411), a double gear (412), a first quadruple gear (413), a first quadruple gear (414) and a second quadruple gear (415), wherein the double gear (412) is fixedly installed at the front end of a rotor of the pressing motor (311), the first quadruple gear (413) is installed at one end of the double gear (412) in a meshed mode, the first quadruple gear (414) is fixedly installed in the center of the first quadruple gear (413) in an extending mode, the first double gear (414) is coaxial with the first quadruple gear (413), the second quadruple gear (415) is installed in the first double gear (414) in a meshed mode, the diameter of the first quadruple gear (413) is twice that of the diameter of the double gear (412), the diameter of the first double gear (414) is 1/2 that of the diameter of the double gear (412), and the diameter of the second quadruple gear (415) is equal to that of the, a gear shaft is fixedly arranged in the first quadruple gear (413), a gear shaft is fixedly arranged in the second quadruple gear (415), the gear shaft in the second quadruple gear (415) and the second quadruple gear (415) rotate synchronously, and the eighty-times reduction box shell (411) is fixedly arranged on the outer side of the double gear (412).
4. A reverse osmosis seawater desalination system energy recovery device according to claim 3, wherein: and a valve ball is fixedly mounted at one end, far away from the pressure motor (311), of a gear shaft in the second quadruple gear (415), the diameter of a valve hole of the valve ball is 1/4 of the diameter of the valve ball, and the valve ball is fixedly mounted on a strong brine outlet pipe (328).
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